Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Herman J. Pieters"'
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 38:791-797
The construction of a temperature-controlled feedback system for electrothermal atomization-atomic absorption spectrometry (ETA-AAS) using an optical pyrometer applied to the atomization stage is described. The system was used in conjunction with a f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85bbecef6eef6d78049cb04b2d4e9fe9
https://doi.org/10.1016/0584-8547(83)80177-3
https://doi.org/10.1016/0584-8547(83)80177-3
Autor:
Herman J. Pieters, Robert F. M. Herber
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 43:149-158
A systematic approach to the question of the height or area calculation in electrothermal atomization-atomic absorption spectrometry (ETA-AAS) is given. Points studied are the real time sampling, power spectrum, temperature and the chemical compositi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d89308f75547844abeeea14a7729c083
https://doi.org/10.1016/0584-8547(88)80003-x
https://doi.org/10.1016/0584-8547(88)80003-x
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 39:397-405
A new pyrometric temperature feedback control system 1 for ETA-AAS is introduced which controls the entire temperature range needed for analysis. The system consists of a single infrared sensitive detector and independent feedback control circuitry f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac5820f4fe7fec7b7a498bec7ed5af74
https://doi.org/10.1016/0584-8547(84)80047-6
https://doi.org/10.1016/0584-8547(84)80047-6
Publikováno v:
Fresenius' Zeitschrift für analytische Chemie. 313:103-107
A comparison of performance characteristics of ICAP-AES and ETA-AAS experienced in analyzing Cu and Zn in blood serum is described. Accuracy and precision were evaluated by a statistical procedure permitting graphical representation of the results. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7467f2b71b3f6285fade0e4c72b8b4a0
https://doi.org/10.1007/bf00518213
https://doi.org/10.1007/bf00518213
Autor:
Herman J. Pieters, Robert F. M. Herber
Publikováno v:
Fresenius' Zeitschrift für analytische Chemie. 311:691-694
Generally the discussion of analytical results of a population is restricted to the calculation of an overall mean and standard deviation. In this paper a method is described enabling the direct incorporation of peculiarities in the distribution of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6aa179d0f58a029893e5d24c30854fb
https://doi.org/10.1007/bf00488947
https://doi.org/10.1007/bf00488947
Autor:
Wim J. Buis, Herman J. Pieters
Publikováno v:
Microchemical Journal. 8:383-388
A modified technique is described which gives reliable and reproducible results for the combustion of organo-germanium compounds. The catalyst used is tungsten trioxide. Essential for good results is a slow combustion which has to be carried out manu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce2c2e44c539d7a6bec9be984c1985a7
https://doi.org/10.1016/0026-265x(64)90132-8
https://doi.org/10.1016/0026-265x(64)90132-8
Autor:
Herman J. Pietersen
Publikováno v:
SA Journal of Industrial Psychology, Vol 29, Iss 1 (2003)
Veldsman, T.H. (2002) "Into the people effectiveness arena: Navigating between chaos and order", Randburg, South Africa: Knowledge Resources, 364 pages. In a noteworthy new South African management text, Theo Veldsman, consultant in the strategic hum
Externí odkaz:
https://doaj.org/article/8570b9795bae444db0f6aa11b67b34f4